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    and revisit the ones you got wrong.

2. Track your GMAT Official Guide
    (OG13) performance (Set #29-36)

3. View video explanations



  Favorite Question Type Views % who got
it correct
Your
Answer
Correct
Answer
GMAT Practice Set # 1  
GMAT Problem Solving # 1 : Coordinate Triangles
 
  Geometry (Coordinates) 19552 63% View Show
GMAT Problem Solving # 2 : Numberline Reciprocals
 
  Numberline 16307 53% View Show
GMAT Problem Solving # 3 : Perimeter of a Triangle
  Geometry 14562 59% View Show
GMAT Practice Set # 2  
GMAT Problem Solving # 4 : Basic Algebraic Expression
  Algebra 10007 92% View Show
GMAT Problem Solving # 5 : Infinite Sequence
  Number Properties 9847 73% View Show
GMAT Problem Solving # 6 : Prime Number Properties
  Number Properties 9572 94% View Show
GMAT Practice Set # 3  
GMAT Problem Solving # 7 : Algebraic Expression
  Algebra 9063 68% View Show
GMAT Problem Solving # 8 : Sarah Sales Tax
  Word Problem (Algebra) 9416 57% View Show
GMAT Problem Solving # 9 : Odd and Even Integers
  Number Properties 21060 68% View Show
GMAT Practice Set # 4  
GMAT Problem Solving # 10 : Exponential Products
  Number Properties (Exponents) 7243 83% View Show
GMAT Problem Solving # 11 : Quarter of a Circle
  Geometry (Circles) 7930 75% View Show
GMAT Problem Solving # 12 : Square Root Estimation
  Algebra (Roots) 7004 81% View Show
GMAT Practice Set # 5  
GMAT Problem Solving # 13 : Hypothetical Functions
  Functions 7457 62% View Show
GMAT Problem Solving # 14 : Inscribed Circle
  Geometry 8280 66% View Show
GMAT Problem Solving # 15 : Basic and 3D TVs
 
  Word Problem (Algebra) 7940 55% View Show
GMAT Practice Set # 6  
GMAT Problem Solving # 16 : Numerical Properties
  Numberline 8159 66% View Show
GMAT Problem Solving # 17 : Area of a Diagram
  Word Problem (Geometry) 7513 63% View Show
GMAT Problem Solving # 18 : Factorial Calculations
  Number Properties (Factorial) 6403 83% View Show
GMAT Practice Set # 7  
GMAT Problem Solving # 19 : Inequality Graph
  Numberline 6360 73% View Show
GMAT Problem Solving # 20 : Inscribed Triangle
  Geometry 8069 82% View Show
GMAT Problem Solving # 21 : Arithmetic Mean
  Number Properties (Average) 6255 76% View Show
GMAT Practice Set # 8  
GMAT Problem Solving # 22 : Fractional Exponent Equation
  Algebra (Exponents) 6555 74% View Show
GMAT Problem Solving # 23 : Exponent Manipulation
  Algebra (Exponents) 6943 86% View Show
GMAT Problem Solving # 24 : Colleague Retirement
  Word Problem (Algebra) 6087 63% View Show
GMAT Practice Set # 9  
GMAT Problem Solving # 25 : Take Home Pay
  Word Problem (Algebra) 6878 54% View Show
GMAT Problem Solving # 26 : Functions with Two Variables
  Functions 5520 64% View Show
GMAT Problem Solving # 27 : Dividing Functions
  Functions 4660 77% View Show
GMAT Practice Set # 10  
GMAT Problem Solving # 28 : Difference of Squres
  Number Properties (Squares) 4952 74% View Show
GMAT Problem Solving # 29 : Square Root of Difference of Squares
  Algebra (Roots) 8106 88% View Show
GMAT Problem Solving # 30 : Circular Ring With Thickness
  Geometry (Circles) 6563 60% View Show
GMAT Practice Set # 11  
GMAT Problem Solving # 31 : Choosing Among Twins
  Word Problem: MultiLayered Combination (nCr) 10379 51% View Show
GMAT Problem Solving # 32 : Semicircle Coordinates
  Geometry (Coordinates) 5544 55% View Show
GMAT Problem Solving # 33 : Triangular Area
  Geometry (Triangle) 6440 57% View Show
GMAT Practice Set # 12  
GMAT Problem Solving # 34 : Double Triangle
  Geometry (Triangle) 5631 80% View Show
GMAT Problem Solving # 35 : Isosceles Right Triangle
  Geometry (Triangle) 6135 48% View Show
GMAT Problem Solving # 36 : Triangle and Square
  Geometry 5551 63% View Show
GMAT Practice Set # 13  
GMAT Problem Solving # 37 : Prime Sums
  Number Properties (Prime Numbers) 5043 89% View Show
GMAT Problem Solving # 38 : Combining Integers: Even or Odd
  Number Properties 4641 74% View Show
GMAT Problem Solving # 39 : Internal Review Interviews
  Word Problem (Probability) 4951 73% View Show
GMAT Practice Set # 14  
GMAT Problem Solving # 40 : Committee Probability
  Word Problem (Combinations) 5679 75% View Show
GMAT Problem Solving # 41 : Three teams of two people each
  Combination / Permutation 6575 59% View Show
GMAT Problem Solving # 42 : Subtracting Exponents
  Number Properties (Prime Numbers) 5650 54% View Show
GMAT Practice Set # 15  
GMAT Problem Solving # 43 : Smoothie Mixtures
  Word Problem (Mixtures) 5882 52% View Show
GMAT Problem Solving # 44 : Cleaning a Yacht
  Word Problem (Work) 4618 83% View Show
GMAT Problem Solving # 45 : Treadmill Running
  Word Problem (Work) 8878 20% View Show
GMAT Practice Set # 16  
GMAT Problem Solving # 46 : Algebraic Definition
  Algebra (Roots) 4647 73% View Show
GMAT Problem Solving # 47 : Basketball - Who Is on my team
 
  Combination / Permutation 5166 66% View Show
GMAT Problem Solving # 48 : Basketball Representatives
  Combination / Permutation 5525 58% View Show
GMAT Practice Set # 17  
GMAT Problem Solving # 49 : Basketball - Who is on my team (B)
  Combination / Permutation 20373 30% View Show
GMAT Problem Solving # 50 : Mini-Volleyball Teams
  Combination / Permutation 5139 58% View Show
GMAT Problem Solving # 51 : Team Assignments
  Probabilities 4138 78% View Show
GMAT Practice Set # 18  
GMAT Problem Solving # 52 : Taxi and Bus
  Rates 4951 68% View Show
GMAT Problem Solving # 53 : Racing Cars
  Rates 3679 81% View Show
GMAT Problem Solving # 54 : Kickball Competition
  Combination / Permutation 3495 82% View Show
GMAT Practice Set # 19  
GMAT Problem Solving # 55 : Mixing Rice
  Mixtures 4122 79% View Show
GMAT Problem Solving # 56 : Sand and Soil
  Mixtures 4484 56% View Show
GMAT Problem Solving # 57 : Dating Among Threes
  Combination / Permutation 3580 74% View Show
GMAT Practice Set # 20  
GMAT Problem Solving # 58 : Dating Among A Set of Medical Interns
  Combination / Permutation 4221 63% View Show
GMAT Problem Solving # 59 : Paycheck Averages
  3453 69% View Show
GMAT Problem Solving # 60 : Class Assignments
  Probabilities 5020 38% View Show
GMAT Practice Set # 21  
GMAT Problem Solving # 61 : Choosing a Literature Panel
  Combination / Permutation 3703 58% View Show
GMAT Problem Solving # 62 : Units Digit of Exponents
  Number Properties 4147 50% View Show
GMAT Problem Solving # 63 : Big Number divisible by 11
  Number Properties (divisibility) 3665 55% View Show
GMAT Practice Set # 22  
GMAT Problem Solving # 64 : Expression Divisible by 3
  Divisibility 3912 51% View Show
GMAT Problem Solving # 65 : Expression Not Divisible By
  Divisibility 3133 88% View Show
GMAT Problem Solving # 66 : Sum of Expression for 10 Integers
  Sum of Sequence 3477 59% View Show
GMAT Practice Set # 23  
GMAT Problem Solving # 67 : Triple Repayment Plan
  Sum of Sequence 3846 51% View Show
GMAT Problem Solving # 68 : Divisibility for Large Number
  Divisibility 3854 67% View Show
GMAT Problem Solving # 69 : Cooking Teams
  Combination / Permutation 3449 49% View Show
GMAT Practice Set # 24  
GMAT Problem Solving # 70 : Sum of Even Integers 102-200
  Sum of Sequence 2634 71% View Show
GMAT Problem Solving # 71 : Probability At Least 1 Pair
  Combination / Permutation 4679 44% View Show
GMAT Problem Solving # 72 : Hacking a Password
  Combination / Permutation 4222 61% View Show
GMAT Practice Set # 25  
GMAT Problem Solving # 73 : Length of Arc
  Geometry (Circles) 4305 53% View Show
GMAT Problem Solving # 74 : Fair Coin Toss 5 Times (ways)
  Combination / Permutation 3976 33% View Show
GMAT Problem Solving # 75 : Gallon Consumption Comparison
  Rate Problem 3195 69% View Show
GMAT Practice Set # 26  
GMAT Problem Solving # 76 : Car Seating Arrangement
  Combination / Permutation 6166 59% View Show
GMAT Problem Solving # 77 : Probability of a Digit in a 3-digit Number
  Number Properties (Digits) 3986 41% View Show
GMAT Problem Solving # 78 : Least Common Multiple Thru 8
  Number Properties (LCM) 2933 71% View Show
GMAT Practice Set # 27  
GMAT Problem Solving # 79 : Quality Control on Glass Smartphones
  Probability 3425 53% View Show
GMAT Problem Solving # 80 : Integrated Team Formations
  Combination / Permutation 2569 88% View Show
GMAT Problem Solving # 81 : Exponent Manipulation
  Exponents 2742 88% View Show
GMAT Practice Set # 28  
GMAT Problem Solving # 82 : Red Striped Golf Balls
 
  Probability 2977 74% View Show
GMAT Problem Solving # 83 : Sum of Two Exponents
  Number Properties (Exponent) 2957 77% View Show
GMAT Problem Solving # 84 : Passwords 4 or 5 characters
  Combination / Permutation 3343 41% View Show
GMAT Practice Set # 29  
GMAT Problem Solving # 85
  2096 70% View Show
GMAT Problem Solving # 86 : OG13-230
 
  Large Exponents 3623 56% View Show
GMAT Problem Solving # 87 : OG13-229
 
  Fractional Inequality 3699 40% View Show
GMAT Practice Set # 30  
GMAT Problem Solving # 88 : OG13-228
 
  Coordinate Geometry 2913 54% View Show
GMAT Problem Solving # 89 : OG13-227
 
  Decimal and Powers of 10 2268 62% View Show
GMAT Problem Solving # 90 : OG13-226
 
  Word Problem (Fractions) 2206 72% View Show
GMAT Practice Set # 31  
GMAT Problem Solving # 91 : OG13-225
 
  Odd and Even Integers 2078 70% View Show
GMAT Problem Solving # 92 : OG13-224
 
  Mixtures 3109 67% View Show
GMAT Problem Solving # 93 : OG13-223
 
  Algebra 1573 83% View Show
GMAT Practice Set # 32  
GMAT Problem Solving # 94 : OG13-222
 
  Venn Diagram 2279 75% View Show
GMAT Problem Solving # 95 : OG13-221
 
  Number Properties (Consecutive Integers) 1432 87% View Show
GMAT Problem Solving # 96 : OG13-220
 
  Algebra (Fractions) 1552 91% View Show
GMAT Practice Set # 33  
GMAT Problem Solving # 97 : OG13-219
 
  Word Problem (Factors) 1622 76% View Show
GMAT Problem Solving # 98 : OG13-218
 
  Decimal Digits 3115 30% View Show
GMAT Problem Solving # 99 : OG 13-217
 
  Fractions, Negative Exponents 1752 90% View Show
GMAT Practice Set # 34  
GMAT Problem Solving # 100 : OG13-216
 
  Fractions and Equations 1845 83% View Show
GMAT Problem Solving # 101 : OG13-215
 
  Word Problem (Probability) 1854 78% View Show
GMAT Problem Solving # 102 : OG13-214
 
  Word Problem (Algebra) 1648 68% View Show
GMAT Practice Set # 35  
GMAT Problem Solving # 103 : OG13-213
 
  Geometry 1730 85% View Show
GMAT Problem Solving # 104 : OG13-212
 
  Number Properties 1778 86% View Show
GMAT Problem Solving # 105 : OG13-211
 
  Geometry (Coordinates) 1470 67% View Show
GMAT Practice Set # 36  
GMAT Problem Solving # 106 : OG13-210
 
  Geometry (Lines and Angles) 1590 86% View Show
GMAT Problem Solving # 107 : OG13-209
 
  Algebra 2323 57% View Show
GMAT Problem Solving # 108 : Function of y and 1-y
  Functions 2071 66% View Show
GMAT Practice Set # 37  
GMAT Problem Solving # 109 : Committee at most 1 married couple
  Combination / Permutation 3332 29% View Show
GMAT Problem Solving # 110 : MBA Admissions Committee
  Combination / Permutation 3143 39% View Show
GMAT Problem Solving # 111 : MBA Admissions Committee 2
  Combination / Permutation 3166 28% View Show
GMAT Practice Set # 38  
GMAT Problem Solving # 112 : Marbles in Pockets
  Combination / Permutation 3611 9% View Show
GMAT Problem Solving # 113 : Marbles in Pockets 2
  Combination / Permutation 3208 24% View Show
GMAT Problem Solving # 114 : Mixed Tennis
  Combination / Permutation 2865 21% View Show
GMAT Practice Set # 39  
GMAT Problem Solving # 115 : Movie Date and Couples
  Combination / Permutation 2939 34% View Show
GMAT Problem Solving # 116 : Probability of divisibility
  Divisibility 2854 29% View Show
GMAT Problem Solving # 117 : Roll a Double Dice
  Probability 2687 58% View Show
GMAT Practice Set # 40  
GMAT Problem Solving # 118 : Right Triangle in Circle
  Geometry 2192 81% View Show
GMAT Problem Solving # 119 : Maxwell and Brad Meet 1
  Rate Problem 2251 84% View Show
GMAT Problem Solving # 120 : Maxwell and Brad Meet 2
  Rate Problem 2025 81% View Show
GMAT Practice Set # 41  
GMAT Problem Solving # 121 : Maxwell and Brad Meet 3
  Rate Problem 2585 68% View Show
GMAT Problem Solving # 122 : Maxwell and Brad Meet 4
  Rate Problem 2366 74% View Show
GMAT Problem Solving # 123 : Less than 10 percent both are male
  Combination / Permutation 2192 38% View Show
GMAT Practice Set # 42  
GMAT Problem Solving # 124 : Triplets in Triathlon
  Combinatorics 1333 54% View Show
GMAT Problem Solving # 125 : Expression must be an integer
  Divisibility 1385 42% View Show
GMAT Problem Solving # 126 : Products and Factors
  1567 32% View Show
GMAT Practice Set # 43  
GMAT Problem Solving # 127 : Geometry
  Squares & Triangles 2323 28% View Show
GMAT Problem Solving # 128 : Circle inscribed in Triangle
  Geometry (Circles and Triangles) 2268 31% View Show
GMAT Practice Set # 44  
GMAT Problem Solving # 129 : Python and Rails Developers
  Combination / Permutation 3528 61% View Show
GMAT Problem Solving # 130 : Algebraic Expression with Exponents
  Algebra (Exponents) 2687 71% View Show
GMAT Problem Solving # 131 : Square Root of a Number
  Algebra (Roots) 2697 86% View Show
GMAT Practice Set # 45  
GMAT Problem Solving # 132 : Demographic Statistics
  Word Problem (Probability) 3917 47% View Show
GMAT Problem Solving # 133 : Simple Arithmetic
  Word Problem (Algebra) 2562 91% View Show
GMAT Problem Solving # 134 : Sales of Diamond Rings
  Word Problem (Algebra) 2687 70% View Show
GMAT Practice Set # 46  
GMAT Problem Solving # 135 : Inequality Solution Sets
  Numberline 5040 41% View Show
GMAT Problem Solving # 136 : Chemical Air Ventillation
  Word Problem (Work) 2540 77% View Show
GMAT Problem Solving # 137 : Accounting and Gender
  Word Problem (Probability) 2976 69% View Show
GMAT Practice Set # 47  
GMAT Problem Solving # 138 : Semicircle Coordinates
  Word Problem (Geometry) 2488 55% View Show
GMAT Problem Solving # 139 : Flexible Rubber Belt
  Circles and Shapes 2747 64% View Show
GMAT Problem Solving # 140 : Monthly Savings
  Word Problem (Fractions) 2474 60% View Show
GMAT Practice Set # 48  
GMAT Problem Solving # 141 : Function Constraints
  Number Properties (Functions) 1886 70% View Show
GMAT Problem Solving # 142 : Growth in Population
  Word Problem (Arithmetic) 2161 79% View Show
GMAT Problem Solving # 143 : Snack Sales
  World Problem (Arithmetic) 1798 77% View Show
GMAT Practice Set # 49  
GMAT Problem Solving # 144 : Area of Triangle
  Geometry (Triangle) 3469 42% View Show
GMAT Problem Solving # 145 : Sum of Squares
  Number Properties (Squares) 2887 60% View Show
GMAT Problem Solving # 146 : Basket Ratios
  Algebra 2444 53% View Show
GMAT Practice Set # 50  
GMAT Problem Solving # 147 : Rectangle Ratios
  Geometry 2636 66% View Show
GMAT Problem Solving # 148 : Headcount Reduction
  Algebra 3072 54% View Show
GMAT Problem Solving # 149 : Area of Two New Shapes
  Geometry 2102 71% View Show
GMAT Practice Set # 51  
GMAT Problem Solving # 150 : Hiring Assistant Managers
  Combination / Permutation 2006 72% View Show
GMAT Problem Solving # 151 : Unit Sales for Products
  Arithemtic (mean/median) 1773 78% View Show
GMAT Problem Solving # 152 : Advising Banking Deals
  Combination / Permutation 2066 68% View Show
GMAT Practice Set # 52  
GMAT Problem Solving # 153 : Average Car Speed
  Rate Problem 2125 72% View Show
GMAT Problem Solving # 154 : Conference Table Arrangements
  Combination / Permutation 2141 69% View Show
GMAT Problem Solving # 155 : Picking a Lab Partner
  Combination / Permutation 2058 40% View Show
GMAT Practice Set # 53  
GMAT Problem Solving # 156 : Apartment Bidding War
  Arithemtic (mean/median) 1892 93% View Show
GMAT Problem Solving # 157 : Even Expression
  Algebra 2172 65% View Show
GMAT Problem Solving # 158 : Bond Investment Yields
  Algebra 2706 59% View Show
GMAT Practice Set # 54  
GMAT Problem Solving # 159 : Sequencing the Human Genome (num days)
  Rate Problem 2201 74% View Show
GMAT Problem Solving # 160 : Circular Gears
  Rate Problem 5472 74% View Show
GMAT Problem Solving # 161 : Hiring in 3 Locations
  Probabilities 1877 79% View Show
GMAT Practice Set # 55  
GMAT Problem Solving # 162 : Finding a Co-Founder
  Combination / Permutation 2066 62% View Show
GMAT Problem Solving # 163 : Circle Arrangements
  Combination / Permutation 2417 52% View Show
GMAT Problem Solving # 164 : Sequencing the Human Genome (num machines)
  Rate Problem 2219 67% View Show
GMAT Practice Set # 56  
GMAT Problem Solving # 165 : Sequencing the Human Genome (different num of computers)
  Rate Problem 2133 63% View Show
GMAT Problem Solving # 166 : Area of Square Region
  Geometry 3090 61% View Show
GMAT Problem Solving # 167 : Warehouse Digits Leading Zeros
  Variations 2716 45% View Show
GMAT Practice Set # 57  
GMAT Problem Solving # 168 : Choosing a Literature Panel
  Combination / Permutation 1973 65% View Show
GMAT Problem Solving # 169 : Investing in Savings Account
  Interest Rate 1817 38% View Show
GMAT Problem Solving # 170 : Investing in Savings Account - interest
  Interest Rate 1604 63% View Show
GMAT Practice Set # 58  
GMAT Problem Solving # 171 : Sum of Expression for 11 Integers
  Sum of Sequence 2668 60% View Show
GMAT Problem Solving # 172 : Sum of Expression for 5 Integers
  Sum of Sequence 2204 61% View Show
GMAT Problem Solving # 173 : Sum of Expression for Even Integers
  Sum of Sequence 2783 36% View Show
GMAT Practice Set # 59  
GMAT Problem Solving # 174 : Sum of First 50 Odd Integers
  Sum of Sequence 2682 74% View Show
GMAT Problem Solving # 175 : Sum of Odd Integers 102-200
  Sum of Sequence 3127 66% View Show
GMAT Problem Solving # 176 : Length of Arc Tip
  Geometry (Circles) 2707 63% View Show
GMAT Practice Set # 60  
GMAT Problem Solving # 177 : Fair Coin Toss 5 Times (probability)
  Combination / Permutation 3451 37% View Show
GMAT Problem Solving # 178 : Car Seating Arrangement (father in back)
  Combination / Permutation 2375 49% View Show
GMAT Problem Solving # 179 : Car Seating Arrangement (father center back)
  Combination / Permutation 1873 87% View Show
GMAT Practice Set # 61  
GMAT Problem Solving # 180 : Car Seating Arrangement (Matt Peter cannot sit next to each other)
  Combination / Permutation 3088 43% View Show
GMAT Problem Solving # 181 : Circular Seating Table
  Combinatorics 2640 61% View Show
GMAT Problem Solving # 182 : Algebraic Equality
  Algebra 2082 67% View Show
GMAT Practice Set # 62  
GMAT Problem Solving # 183 : Sharing Donuts
  Combinatorics 2713 29% View Show
GMAT Problem Solving # 184 : Distance Rate Question
  Rates 2194 58% View Show
GMAT Problem Solving # 185 : Looking into the Pool
  Geometry 1727 79% View Show
GMAT Practice Set # 63  
GMAT Problem Solving # 186 : Function as Product of All Odd Integers
  Number Properties 1771 63% View Show
GMAT Practice Set Favorite Question Type Views % who got it correct Your Answer Correct Answer
GMAT Practice Set # 1          
GMAT Problem Solving # 1 : Coordinate Triangles
 
  Geometry (Coordinates) 19552 63% View Show
GMAT Problem Solving # 2 : Numberline Reciprocals
 
  Numberline 16307 53% View Show
GMAT Problem Solving # 3 : Perimeter of a Triangle
  Geometry 14562 59% View Show
GMAT Practice Set # 2          
GMAT Problem Solving # 4 : Basic Algebraic Expression
  Algebra 10007 92% View Show
GMAT Problem Solving # 5 : Infinite Sequence
  Number Properties 9847 73% View Show
GMAT Problem Solving # 6 : Prime Number Properties
  Number Properties 9572 94% View Show
GMAT Practice Set # 3          
GMAT Problem Solving # 7 : Algebraic Expression
  Algebra 9063 68% View Show
GMAT Problem Solving # 8 : Sarah Sales Tax
  Word Problem (Algebra) 9416 57% View Show
GMAT Problem Solving # 9 : Odd and Even Integers
  Number Properties 21060 68% View Show
GMAT Practice Set # 4          
GMAT Problem Solving # 10 : Exponential Products
  Number Properties (Exponents) 7243 83% View Show
GMAT Problem Solving # 11 : Quarter of a Circle
  Geometry (Circles) 7930 75% View Show
GMAT Problem Solving # 12 : Square Root Estimation
  Algebra (Roots) 7004 81% View Show
GMAT Practice Set # 5          
GMAT Problem Solving # 13 : Hypothetical Functions
  Functions 7457 62% View Show
GMAT Problem Solving # 14 : Inscribed Circle
  Geometry 8280 66% View Show
GMAT Problem Solving # 15 : Basic and 3D TVs
 
  Word Problem (Algebra) 7940 55% View Show
GMAT Practice Set # 6          
GMAT Problem Solving # 16 : Numerical Properties
  Numberline 8159 66% View Show
GMAT Problem Solving # 17 : Area of a Diagram
  Word Problem (Geometry) 7513 63% View Show
GMAT Problem Solving # 18 : Factorial Calculations
  Number Properties (Factorial) 6403 83% View Show
GMAT Practice Set # 7          
GMAT Problem Solving # 19 : Inequality Graph
  Numberline 6360 73% View Show
GMAT Problem Solving # 20 : Inscribed Triangle
  Geometry 8069 82% View Show
GMAT Problem Solving # 21 : Arithmetic Mean
  Number Properties (Average) 6255 76% View Show
GMAT Practice Set # 8          
GMAT Problem Solving # 22 : Fractional Exponent Equation
  Algebra (Exponents) 6555 74% View Show
GMAT Problem Solving # 23 : Exponent Manipulation
  Algebra (Exponents) 6943 86% View Show
GMAT Problem Solving # 24 : Colleague Retirement
  Word Problem (Algebra) 6087 63% View Show
GMAT Practice Set # 9          
GMAT Problem Solving # 25 : Take Home Pay
  Word Problem (Algebra) 6878 54% View Show
GMAT Problem Solving # 26 : Functions with Two Variables
  Functions 5520 64% View Show
GMAT Problem Solving # 27 : Dividing Functions
  Functions 4660 77% View Show
GMAT Practice Set # 10          
GMAT Problem Solving # 28 : Difference of Squres
  Number Properties (Squares) 4952 74% View Show
GMAT Problem Solving # 29 : Square Root of Difference of Squares
  Algebra (Roots) 8106 88% View Show
GMAT Problem Solving # 30 : Circular Ring With Thickness
  Geometry (Circles) 6563 60% View Show
GMAT Practice Set # 11          
GMAT Problem Solving # 31 : Choosing Among Twins
  Word Problem: MultiLayered Combination (nCr) 10379 51% View Show
GMAT Problem Solving # 32 : Semicircle Coordinates
  Geometry (Coordinates) 5544 55% View Show
GMAT Problem Solving # 33 : Triangular Area
  Geometry (Triangle) 6440 57% View Show
GMAT Practice Set # 12          
GMAT Problem Solving # 34 : Double Triangle
  Geometry (Triangle) 5631 80% View Show
GMAT Problem Solving # 35 : Isosceles Right Triangle
  Geometry (Triangle) 6135 48% View Show
GMAT Problem Solving # 36 : Triangle and Square
  Geometry 5551 63% View Show
GMAT Practice Set # 13          
GMAT Problem Solving # 37 : Prime Sums
  Number Properties (Prime Numbers) 5043 89% View Show
GMAT Problem Solving # 38 : Combining Integers: Even or Odd
  Number Properties 4641 74% View Show
GMAT Problem Solving # 39 : Internal Review Interviews
  Word Problem (Probability) 4951 73% View Show
GMAT Practice Set # 14          
GMAT Problem Solving # 40 : Committee Probability
  Word Problem (Combinations) 5679 75% View Show
GMAT Problem Solving # 41 : Three teams of two people each
  Combination / Permutation 6575 59% View Show
GMAT Problem Solving # 42 : Subtracting Exponents
  Number Properties (Prime Numbers) 5650 54% View Show
GMAT Practice Set # 15          
GMAT Problem Solving # 43 : Smoothie Mixtures
  Word Problem (Mixtures) 5882 52% View Show
GMAT Problem Solving # 44 : Cleaning a Yacht
  Word Problem (Work) 4618 83% View Show
GMAT Problem Solving # 45 : Treadmill Running
  Word Problem (Work) 8878 20% View Show
GMAT Practice Set # 16          
GMAT Problem Solving # 46 : Algebraic Definition
  Algebra (Roots) 4647 73% View Show
GMAT Problem Solving # 47 : Basketball - Who Is on my team
 
  Combination / Permutation 5166 66% View Show
GMAT Problem Solving # 48 : Basketball Representatives
  Combination / Permutation 5525 58% View Show
GMAT Practice Set # 17          
GMAT Problem Solving # 49 : Basketball - Who is on my team (B)
  Combination / Permutation 20373 30% View Show
GMAT Problem Solving # 50 : Mini-Volleyball Teams
  Combination / Permutation 5139 58% View Show
GMAT Problem Solving # 51 : Team Assignments
  Probabilities 4138 78% View Show
GMAT Practice Set # 18          
GMAT Problem Solving # 52 : Taxi and Bus
  Rates 4951 68% View Show
GMAT Problem Solving # 53 : Racing Cars
  Rates 3679 81% View Show
GMAT Problem Solving # 54 : Kickball Competition
  Combination / Permutation 3495 82% View Show
GMAT Practice Set # 19          
GMAT Problem Solving # 55 : Mixing Rice
  Mixtures 4122 79% View Show
GMAT Problem Solving # 56 : Sand and Soil
  Mixtures 4484 56% View Show
GMAT Problem Solving # 57 : Dating Among Threes
  Combination / Permutation 3580 74% View Show
GMAT Practice Set # 20          
GMAT Problem Solving # 58 : Dating Among A Set of Medical Interns
  Combination / Permutation 4221 63% View Show
GMAT Problem Solving # 59 : Paycheck Averages
  3453 69% View Show
GMAT Problem Solving # 60 : Class Assignments
  Probabilities 5020 38% View Show
GMAT Practice Set # 21          
GMAT Problem Solving # 61 : Choosing a Literature Panel
  Combination / Permutation 3703 58% View Show
GMAT Problem Solving # 62 : Units Digit of Exponents
  Number Properties 4147 50% View Show
GMAT Problem Solving # 63 : Big Number divisible by 11
  Number Properties (divisibility) 3665 55% View Show
GMAT Practice Set # 22          
GMAT Problem Solving # 64 : Expression Divisible by 3
  Divisibility 3912 51% View Show
GMAT Problem Solving # 65 : Expression Not Divisible By
  Divisibility 3133 88% View Show
GMAT Problem Solving # 66 : Sum of Expression for 10 Integers
  Sum of Sequence 3477 59% View Show
GMAT Practice Set # 23          
GMAT Problem Solving # 67 : Triple Repayment Plan
  Sum of Sequence 3846 51% View Show
GMAT Problem Solving # 68 : Divisibility for Large Number
  Divisibility 3854 67% View Show
GMAT Problem Solving # 69 : Cooking Teams
  Combination / Permutation 3449 49% View Show
GMAT Practice Set # 24          
GMAT Problem Solving # 70 : Sum of Even Integers 102-200
  Sum of Sequence 2634 71% View Show
GMAT Problem Solving # 71 : Probability At Least 1 Pair
  Combination / Permutation 4679 44% View Show
GMAT Problem Solving # 72 : Hacking a Password
  Combination / Permutation 4222 61% View Show
GMAT Practice Set # 25          
GMAT Problem Solving # 73 : Length of Arc
  Geometry (Circles) 4305 53% View Show
GMAT Problem Solving # 74 : Fair Coin Toss 5 Times (ways)
  Combination / Permutation 3976 33% View Show
GMAT Problem Solving # 75 : Gallon Consumption Comparison
  Rate Problem 3195 69% View Show
GMAT Practice Set # 26          
GMAT Problem Solving # 76 : Car Seating Arrangement
  Combination / Permutation 6166 59% View Show
GMAT Problem Solving # 77 : Probability of a Digit in a 3-digit Number
  Number Properties (Digits) 3986 41% View Show
GMAT Problem Solving # 78 : Least Common Multiple Thru 8
  Number Properties (LCM) 2933 71% View Show
GMAT Practice Set # 27          
GMAT Problem Solving # 79 : Quality Control on Glass Smartphones
  Probability 3425 53% View Show
GMAT Problem Solving # 80 : Integrated Team Formations
  Combination / Permutation 2569 88% View Show
GMAT Problem Solving # 81 : Exponent Manipulation
  Exponents 2742 88% View Show
GMAT Practice Set # 28          
GMAT Problem Solving # 82 : Red Striped Golf Balls
 
  Probability 2977 74% View Show
GMAT Problem Solving # 83 : Sum of Two Exponents
  Number Properties (Exponent) 2957 77% View Show
GMAT Problem Solving # 84 : Passwords 4 or 5 characters
  Combination / Permutation 3343 41% View Show
GMAT Practice Set # 29          
GMAT Problem Solving # 85
  2096 70% View Show
GMAT Problem Solving # 86 : OG13-230
 
  Large Exponents 3623 56% View Show
GMAT Problem Solving # 87 : OG13-229
 
  Fractional Inequality 3699 40% View Show
GMAT Practice Set # 30          
GMAT Problem Solving # 88 : OG13-228
 
  Coordinate Geometry 2913 54% View Show
GMAT Problem Solving # 89 : OG13-227
 
  Decimal and Powers of 10 2268 62% View Show
GMAT Problem Solving # 90 : OG13-226
 
  Word Problem (Fractions) 2206 72% View Show
GMAT Practice Set # 31          
GMAT Problem Solving # 91 : OG13-225
 
  Odd and Even Integers 2078 70% View Show
GMAT Problem Solving # 92 : OG13-224
 
  Mixtures 3109 67% View Show
GMAT Problem Solving # 93 : OG13-223
 
  Algebra 1573 83% View Show
GMAT Practice Set # 32          
GMAT Problem Solving # 94 : OG13-222
 
  Venn Diagram 2279 75% View Show
GMAT Problem Solving # 95 : OG13-221
 
  Number Properties (Consecutive Integers) 1432 87% View Show
GMAT Problem Solving # 96 : OG13-220
 
  Algebra (Fractions) 1552 91% View Show
GMAT Practice Set # 33          
GMAT Problem Solving # 97 : OG13-219
 
  Word Problem (Factors) 1622 76% View Show
GMAT Problem Solving # 98 : OG13-218
 
  Decimal Digits 3115 30% View Show
GMAT Problem Solving # 99 : OG 13-217
 
  Fractions, Negative Exponents 1752 90% View Show
GMAT Practice Set # 34          
GMAT Problem Solving # 100 : OG13-216
 
  Fractions and Equations 1845 83% View Show
GMAT Problem Solving # 101 : OG13-215
 
  Word Problem (Probability) 1854 78% View Show
GMAT Problem Solving # 102 : OG13-214
 
  Word Problem (Algebra) 1648 68% View Show
GMAT Practice Set # 35          
GMAT Problem Solving # 103 : OG13-213
 
  Geometry 1730 85% View Show
GMAT Problem Solving # 104 : OG13-212
 
  Number Properties 1778 86% View Show
GMAT Problem Solving # 105 : OG13-211
 
  Geometry (Coordinates) 1470 67% View Show
GMAT Practice Set # 36          
GMAT Problem Solving # 106 : OG13-210
 
  Geometry (Lines and Angles) 1590 86% View Show
GMAT Problem Solving # 107 : OG13-209
 
  Algebra 2323 57% View Show
GMAT Problem Solving # 108 : Function of y and 1-y
  Functions 2071 66% View Show
GMAT Practice Set # 37          
GMAT Problem Solving # 109 : Committee at most 1 married couple
  Combination / Permutation 3332 29% View Show
GMAT Problem Solving # 110 : MBA Admissions Committee
  Combination / Permutation 3143 39% View Show
GMAT Problem Solving # 111 : MBA Admissions Committee 2
  Combination / Permutation 3166 28% View Show
GMAT Practice Set # 38          
GMAT Problem Solving # 112 : Marbles in Pockets
  Combination / Permutation 3611 9% View Show
GMAT Problem Solving # 113 : Marbles in Pockets 2
  Combination / Permutation 3208 24% View Show
GMAT Problem Solving # 114 : Mixed Tennis
  Combination / Permutation 2865 21% View Show
GMAT Practice Set # 39          
GMAT Problem Solving # 115 : Movie Date and Couples
  Combination / Permutation 2939 34% View Show
GMAT Problem Solving # 116 : Probability of divisibility
  Divisibility 2854 29% View Show
GMAT Problem Solving # 117 : Roll a Double Dice
  Probability 2687 58% View Show
GMAT Practice Set # 40          
GMAT Problem Solving # 118 : Right Triangle in Circle
  Geometry 2192 81% View Show
GMAT Problem Solving # 119 : Maxwell and Brad Meet 1
  Rate Problem 2251 84% View Show
GMAT Problem Solving # 120 : Maxwell and Brad Meet 2
  Rate Problem 2025 81% View Show
GMAT Practice Set # 41          
GMAT Problem Solving # 121 : Maxwell and Brad Meet 3
  Rate Problem 2585 68% View Show
GMAT Problem Solving # 122 : Maxwell and Brad Meet 4
  Rate Problem 2366 74% View Show
GMAT Problem Solving # 123 : Less than 10 percent both are male
  Combination / Permutation 2192 38% View Show
GMAT Practice Set # 42          
GMAT Problem Solving # 124 : Triplets in Triathlon
  Combinatorics 1333 54% View Show
GMAT Problem Solving # 125 : Expression must be an integer
  Divisibility 1385 42% View Show
GMAT Problem Solving # 126 : Products and Factors
  1567 32% View Show
GMAT Practice Set # 43          
GMAT Problem Solving # 127 : Geometry
  Squares & Triangles 2323 28% View Show
GMAT Problem Solving # 128 : Circle inscribed in Triangle
  Geometry (Circles and Triangles) 2268 31% View Show
GMAT Practice Set # 44          
GMAT Problem Solving # 129 : Python and Rails Developers
  Combination / Permutation 3528 61% View Show
GMAT Problem Solving # 130 : Algebraic Expression with Exponents
  Algebra (Exponents) 2687 71% View Show
GMAT Problem Solving # 131 : Square Root of a Number
  Algebra (Roots) 2697 86% View Show
GMAT Practice Set # 45          
GMAT Problem Solving # 132 : Demographic Statistics
  Word Problem (Probability) 3917 47% View Show
GMAT Problem Solving # 133 : Simple Arithmetic
  Word Problem (Algebra) 2562 91% View Show
GMAT Problem Solving # 134 : Sales of Diamond Rings
  Word Problem (Algebra) 2687 70% View Show
GMAT Practice Set # 46          
GMAT Problem Solving # 135 : Inequality Solution Sets
  Numberline 5040 41% View Show
GMAT Problem Solving # 136 : Chemical Air Ventillation
  Word Problem (Work) 2540 77% View Show
GMAT Problem Solving # 137 : Accounting and Gender
  Word Problem (Probability) 2976 69% View Show
GMAT Practice Set # 47          
GMAT Problem Solving # 138 : Semicircle Coordinates
  Word Problem (Geometry) 2488 55% View Show
GMAT Problem Solving # 139 : Flexible Rubber Belt
  Circles and Shapes 2747 64% View Show
GMAT Problem Solving # 140 : Monthly Savings
  Word Problem (Fractions) 2474 60% View Show
GMAT Practice Set # 48          
GMAT Problem Solving # 141 : Function Constraints
  Number Properties (Functions) 1886 70% View Show
GMAT Problem Solving # 142 : Growth in Population
  Word Problem (Arithmetic) 2161 79% View Show
GMAT Problem Solving # 143 : Snack Sales
  World Problem (Arithmetic) 1798 77% View Show
GMAT Practice Set # 49          
GMAT Problem Solving # 144 : Area of Triangle
  Geometry (Triangle) 3469 42% View Show
GMAT Problem Solving # 145 : Sum of Squares
  Number Properties (Squares) 2887 60% View Show
GMAT Problem Solving # 146 : Basket Ratios
  Algebra 2444 53% View Show
GMAT Practice Set # 50          
GMAT Problem Solving # 147 : Rectangle Ratios
  Geometry 2636 66% View Show
GMAT Problem Solving # 148 : Headcount Reduction
  Algebra 3072 54% View Show
GMAT Problem Solving # 149 : Area of Two New Shapes
  Geometry 2102 71% View Show
GMAT Practice Set # 51          
GMAT Problem Solving # 150 : Hiring Assistant Managers
  Combination / Permutation 2006 72% View Show
GMAT Problem Solving # 151 : Unit Sales for Products
  Arithemtic (mean/median) 1773 78% View Show
GMAT Problem Solving # 152 : Advising Banking Deals
  Combination / Permutation 2066 68% View Show
GMAT Practice Set # 52          
GMAT Problem Solving # 153 : Average Car Speed
  Rate Problem 2125 72% View Show
GMAT Problem Solving # 154 : Conference Table Arrangements
  Combination / Permutation 2141 69% View Show
GMAT Problem Solving # 155 : Picking a Lab Partner
  Combination / Permutation 2058 40% View Show
GMAT Practice Set # 53          
GMAT Problem Solving # 156 : Apartment Bidding War
  Arithemtic (mean/median) 1892 93% View Show
GMAT Problem Solving # 157 : Even Expression
  Algebra 2172 65% View Show
GMAT Problem Solving # 158 : Bond Investment Yields
  Algebra 2706 59% View Show
GMAT Practice Set # 54          
GMAT Problem Solving # 159 : Sequencing the Human Genome (num days)
  Rate Problem 2201 74% View Show
GMAT Problem Solving # 160 : Circular Gears
  Rate Problem 5472 74% View Show
GMAT Problem Solving # 161 : Hiring in 3 Locations
  Probabilities 1877 79% View Show
GMAT Practice Set # 55          
GMAT Problem Solving # 162 : Finding a Co-Founder
  Combination / Permutation 2066 62% View Show
GMAT Problem Solving # 163 : Circle Arrangements
  Combination / Permutation 2417 52% View Show
GMAT Problem Solving # 164 : Sequencing the Human Genome (num machines)
  Rate Problem 2219 67% View Show
GMAT Practice Set # 56          
GMAT Problem Solving # 165 : Sequencing the Human Genome (different num of computers)
  Rate Problem 2133 63% View Show
GMAT Problem Solving # 166 : Area of Square Region
  Geometry 3090 61% View Show
GMAT Problem Solving # 167 : Warehouse Digits Leading Zeros
  Variations 2716 45% View Show
GMAT Practice Set # 57          
GMAT Problem Solving # 168 : Choosing a Literature Panel
  Combination / Permutation 1973 65% View Show
GMAT Problem Solving # 169 : Investing in Savings Account
  Interest Rate 1817 38% View Show
GMAT Problem Solving # 170 : Investing in Savings Account - interest
  Interest Rate 1604 63% View Show
GMAT Practice Set # 58          
GMAT Problem Solving # 171 : Sum of Expression for 11 Integers
  Sum of Sequence 2668 60% View Show
GMAT Problem Solving # 172 : Sum of Expression for 5 Integers
  Sum of Sequence 2204 61% View Show
GMAT Problem Solving # 173 : Sum of Expression for Even Integers
  Sum of Sequence 2783 36% View Show
GMAT Practice Set # 59          
GMAT Problem Solving # 174 : Sum of First 50 Odd Integers
  Sum of Sequence 2682 74% View Show
GMAT Problem Solving # 175 : Sum of Odd Integers 102-200
  Sum of Sequence 3127 66% View Show
GMAT Problem Solving # 176 : Length of Arc Tip
  Geometry (Circles) 2707 63% View Show
GMAT Practice Set # 60          
GMAT Problem Solving # 177 : Fair Coin Toss 5 Times (probability)
  Combination / Permutation 3451 37% View Show
GMAT Problem Solving # 178 : Car Seating Arrangement (father in back)
  Combination / Permutation 2375 49% View Show
GMAT Problem Solving # 179 : Car Seating Arrangement (father center back)
  Combination / Permutation 1873 87% View Show
GMAT Practice Set # 61          
GMAT Problem Solving # 180 : Car Seating Arrangement (Matt Peter cannot sit next to each other)
  Combination / Permutation 3088 43% View Show
GMAT Problem Solving # 181 : Circular Seating Table
  Combinatorics 2640 61% View Show
GMAT Problem Solving # 182 : Algebraic Equality
  Algebra 2082 67% View Show
GMAT Practice Set # 62          
GMAT Problem Solving # 183 : Sharing Donuts
  Combinatorics 2713 29% View Show
GMAT Problem Solving # 184 : Distance Rate Question
  Rates 2194 58% View Show
GMAT Problem Solving # 185 : Looking into the Pool
  Geometry 1727 79% View Show
GMAT Practice Set # 63          
GMAT Problem Solving # 186 : Function as Product of All Odd Integers
  Number Properties 1771 63% View Show

Take a full-length Practice Test (Beta)

This is your typical math section that involves a math simplification/calculation question. You'll need to understand number properties -- how do you combine expressions that involve exponents? How do you know if certain expressions can be positive or negative? How is squaring a fraction different from squaring an actual number?

In geometry and coordinates - you'll need to find the value of certain angles, or the length of certain segments with only the available information given.

Perhaps the more difficult questions are the ones that involve a lot of fractional algebra, rate word problems, mixtures, and combination/permutation related math questions.

But before you can attack these more difficult math questions, you need to solidify your quant fundamentals and equip yourself with tactical strategies that help you solve math questions in as little time as possible. The key is efficiency so you can use that extra time on the extra hard questions.

GMAT Tip: Visualize your Actual Test Center Before You Study Each GMAT Question

Watch a FREE GMAT Combinations + Poker Probability Lesson

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